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authorBjorn Andersson <bjorn.andersson@linaro.org>2017-03-14 08:23:26 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-31 09:49:53 +0200
commit800791e7e0fd9835be2f55c55147c379888b7442 (patch)
treeedb0f02fd63e9a25c036f7bef5533345673dfecd /drivers
parent927d04793f8a587532a5c26057bcdcb33bc8f5ba (diff)
pinctrl: qcom: Don't clear status bit on irq_unmask
commit a6566710adaa4a7dd5e0d99820ff9c9c30ee5951 upstream. Clearing the status bit on irq_unmask will discard any pending interrupt that did arrive after the irq_ack, i.e. while the IRQ handler function was executing. Fixes: f365be092572 ("pinctrl: Add Qualcomm TLMM driver") Cc: Stephen Boyd <sboyd@codeaurora.org> Reported-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pinctrl/qcom/pinctrl-msm.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 146264a41ec8..9736f9be5447 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -597,10 +597,6 @@ static void msm_gpio_irq_unmask(struct irq_data *d)
spin_lock_irqsave(&pctrl->lock, flags);
- val = readl(pctrl->regs + g->intr_status_reg);
- val &= ~BIT(g->intr_status_bit);
- writel(val, pctrl->regs + g->intr_status_reg);
-
val = readl(pctrl->regs + g->intr_cfg_reg);
val |= BIT(g->intr_enable_bit);
writel(val, pctrl->regs + g->intr_cfg_reg);